* doc/tm.texi (defmac SMALL_REGISTER_CLASSES): Remove.

	(TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): Add documentation,
	based on the above, for new target hook.

	* hooks.c (hook_bool_mode_true): New generic hook.
	* hooks.h (hook_bool_mode_true): Add prototype.

	* target.h (struct gcc_target): Add small_register_classes_for_mode_p
	target hook.
	* target-def.h (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): New default
	target hook, set to hook_bool_mode_false.
	* regs.h: Remove default definition of SMALL_REGISTER_CLASSES.
	* reload.c (push_secondary_reload): Replace SMALL_REGISTER_CLASSES
	with targetm.small_register_classes_for_mode_p.
	(find_reusable_reload): Likewise.
	(combine_reloads): Likewise.
	* reload1.c (reload_as_needed): Likewise.
	* cse.c (approx_reg_cost_1, hash_rtx_cb): Likewise.
	* ifcvt.c (noce_process_if_block, check_cond_move_block,
	dead_or_predicable): Likewise.
	* regmove.c (optimize_reg_copy_1): Likewise.
	* calls.c (prepare_call_address): Likewise.
	(precompute_register_parameters): Likewise.

	* config/sh/sh.h: Replace SMALL_REGISTER_CLASSES with new target
	hook definition.
	* config/sh/sh.c (sh_small_register_classes_for_mode_p): Add
	implementation of the hook that considers all register classes
	small except for SH64.
	(sh_override_options): Use the new hook.
	* config/sh/sh-protos.h (sh_small_register_classes_for_mode_p):
	Add prototype.

	* config/arm/arm.h: Replace SMALL_REGISTER_CLASSES with new target
	hook definition.
	* config/arm/arm.c (arm_small_register_classes_for_mode_p): Add
	implementation of the hook that considers all register classes
	small for THUMB1.
	* config/arm/arm-protos.h (arm_small_register_classes_for_mode_p):
	Add prototype.

	* config/mips/mips.h: Replace SMALL_REGISTER_CLASSES with new target
	hook definition.
	* config/mips/mips.c (mips_small_register_classes_for_mode_p): Add
	implementation of the hook that considers all register classes
	small for MIPS16.
	* config/mips/mips-protos.h (mips_small_register_classes_for_mode_p):
	Add prototype.

	* config/i386/i386.h: Replace SMALL_REGISTER_CLASSES with new target
	hook definition.
	* config/m32c/m32c.h: Likewise.
	* config/pdp11/pdp11.h: Likewise.
	* config/avr/avr.h: Likewise.
	* config/xtensa/xtensa.h: Likewise.
	* config/m68hc11/m68hc11.h: Likewise.
	* config/mn10300/mn10300.h: Likewise.
	* config/mcore/mcore.h: Likewise.
	* config/h8300/h8300.h: Likewise.
	* config/bfin/bfin.h: Likewise.

	* config/iq2000/iq2000.h: Remove SMALL_REGISTER_CLASSES definition.
	* config/rx/rx.h: Remove SMALL_REGISTER_CLASSES definition.




git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@158997 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 4 deletions

diff --git a/gcc/config/xtensa/xtensa.h b/gcc/config/xtensa/xtensa.h
index d7cab5a1ed2..80c296d930f 100644
--- a/gcc/config/xtensa/xtensa.h
+++ b/gcc/config/xtensa/xtensa.h
@@ -477,10 +477,10 @@ extern const enum reg_class xtensa_regno_to_class[FIRST_PSEUDO_REGISTER];
 #define BASE_REG_CLASS AR_REGS
 #define INDEX_REG_CLASS NO_REGS
 
-/* SMALL_REGISTER_CLASSES is required for Xtensa, because all of the
-   16 AR registers may be explicitly used in the RTL, as either
-   incoming or outgoing arguments.  */
-#define SMALL_REGISTER_CLASSES 1
+/* The small_register_classes_for_mode_p hook must always return true for
+   Xtrnase, because all of the 16 AR registers may be explicitly used in
+   the RTL, as either incoming or outgoing arguments.  */
+#define TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P hook_bool_mode_true
 
 #define PREFERRED_RELOAD_CLASS(X, CLASS)				\
   xtensa_preferred_reload_class (X, CLASS, 0)